Finite Element Modelling of Coal-Seam Gas Well Pumping Assembly for the Prediction and Prevention of Tubing Wear

Conroy, Andrew (2024) Finite Element Modelling of Coal-Seam Gas Well Pumping Assembly for the Prediction and Prevention of Tubing Wear. [USQ Project]

Text (Project – redacted) Conroy_A_dissertation_Redacted.pdf Download (1MB)

Abstract

The project identified that there is limited research on the behaviour of rod strings under operational load in the progressive cavity pumping systems employed in oil & gas wells. It seeks to conduct finite element modelling investigate the loadings on rod strings, particularly in the context of predicting where higher contact loads of the rod against the tubing lead to worn holes, for commercial utility.

Sophisticated modelling proved complex and difficult to achieve; accordingly, successively simpler modelling was conducted so that reliable insights could be determined. To this end, the static bending loads, and typical torsional loads were considered to determine their contribution to contact loads, and found to be minor. Subsequently, dynamic shaft balance loads were briefly explored and shown to be an avenue of future investigation.

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Item Type:	USQ Project
Item Status:	Live Archive
Faculty/School / Institute/Centre:	Current – Faculty of Health, Engineering and Sciences - School of Engineering (1 Jan 2022 -)
Supervisors:	Epaarachchi, Jayantha
Qualification:	Bachelor of Engineering (Honours) (Mechanical)
Date Deposited:	07 Oct 2025 02:20
Last Modified:	07 Oct 2025 02:20
Uncontrolled Keywords:	oil wells; gas wells; cavity pumping systems
URI:	https://sear.unisq.edu.au/id/eprint/53028

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